http://blogs.technet.com/extreme/archive/2007/05/31/iag-runs-isa.aspxWhat is not obvious is the fact that the IAG appliance has the full edition of 2006 ISA standard edition running on it. I figured that I should do this as a follow up to my ISA vs IAG post - as I failed to mention it there. So why should I even buy ISAen-USCommunityServer 2.1 SP1 (Build: 61025.2)